Inhalation spacer



FIG. 1 is a front, top perspective view of an inhalation spacer showing our design;

FIG. 2 is a rear, bottom perspective view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the inhalation spacer which form no part of the claimed design. 

CLAIM The ornamental design for an inhalation spacer, as shown and described. 